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authorLeonard Crestez <leonard.crestez@nxp.com>2019-10-31 23:34:19 +0200
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-01-09 10:19:43 +0100
commit43894f3ae380f18e206d2dd496633fbe5f0a6806 (patch)
tree8777870dd70ae728de2b5739ef78b1a52a4a67f5 /drivers/devfreq
parenteae25dfc30249cf540a045365587a32e6bc9ca6a (diff)
PM / devfreq: Set scaling_max_freq to max on OPP notifier error
[ Upstream commit e7cc792d00049c874010b398a27c3cc7bc8fef34 ] The devfreq_notifier_call functions will update scaling_min_freq and scaling_max_freq when the OPP table is updated. If fetching the maximum frequency fails then scaling_max_freq remains set to zero which is confusing. Set to ULONG_MAX instead so we don't need special handling for this case in other places. Signed-off-by: Leonard Crestez <leonard.crestez@nxp.com> Reviewed-by: Matthias Kaehlcke <mka@chromium.org> Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/devfreq')
-rw-r--r--drivers/devfreq/devfreq.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/devfreq/devfreq.c b/drivers/devfreq/devfreq.c
index e5c2afdc7b7f..e185c8846916 100644
--- a/drivers/devfreq/devfreq.c
+++ b/drivers/devfreq/devfreq.c
@@ -560,8 +560,10 @@ static int devfreq_notifier_call(struct notifier_block *nb, unsigned long type,
goto out;
devfreq->scaling_max_freq = find_available_max_freq(devfreq);
- if (!devfreq->scaling_max_freq)
+ if (!devfreq->scaling_max_freq) {
+ devfreq->scaling_max_freq = ULONG_MAX;
goto out;
+ }
err = update_devfreq(devfreq);